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Table 2 Summary of neonatal M20 Tg mice injected with αS proteins a

From: Induction of CNS α-synuclein pathology by fibrillar and non-amyloidogenic recombinant α-synuclein

Mouse strain

Inoculums

Age at harvest

Number of mice

Pathological findings

M20 (WT αS)

fib αS (2 μl of 1 mg/ml)

1 month

7

No inclusions

M20 (WT αS)

fib αS (2 μl of 1 mg/ml)

2 months

5

No inclusions

M20 (WT αS)

fib αS (2 μl of 1 mg/ml)

4 months

3

No inclusions

M20 (WT αS)

fib αS (2 μl of 1 mg/ml)

8 months

4

4 of 4 mice show sparse cortical pathology

M20 (WT αS)

fib αS (5 μl of 5 mg/ml)

1 month

4

3 of 4 mice show sparse cortical pathology

M20 (WT αS)

fib αS (5 μl of 5 mg/ml)

2 months

5

4 of 5 mice show sparse cortical pathology

M20 (WT αS)

fib αS (5 μl of 5 mg/ml)

4 months

3

2 of 3 mice show sparse cortical pathology

M20 (WT αS)

fib αS (5 μl of 5 mg/ml)

8 months

12

12 of 12 mice show abundant pathologyb

M20 (WT αS)

Δ71-82 αS (2 μl of 1 mg/ml)

1 month

5

No inclusions

M20 (WT αS)

Δ71-82 αS (2 μl of 1 mg/ml)

2 months

5

No inclusions

M20 (WT αS)

Δ71-82 αS (2 μl of 1 mg/ml)

4 months

3

No inclusions

M20 (WT αS)

Δ71-82 αS (2 μl of 1 mg/ml)

8 months

3

No inclusions

M20 (WT αS)

Δ71-82 αS (5 μl of 5 mg/ml)

1 month

7

No inclusions

M20 (WT αS)

Δ71-82 αS (5 μl of 5 mg/ml)

2 months

7

No inclusions

M20 (WT αS)

Δ71-82 αS (5 μl of 5 mg/ml)

8 months

6

2 out of 6 mice show abundant pathologyb

  1. a M20 Tg mice were injected with 21–140 human αS fibrils (fib) or Δ71-82 human αS at the different dosages indicated and analyzed for αS pathology at 1–8 months post-injection using pSer129 and Syn506 antibodies.
  2. b See Figure 4 for a schematic neuroanatomical map showing the distribution of αS pathology.